riscv obfuscated lock (micro-ctf)
The flag follows the standard sometext{flag_text}.
If you get stuck, you can read the technical explanation.
Difficultity: Medium-Hard
Flavor Text:
You're trying to break into a vault. Sadly, the keypad is military grade. You can't get your hands on one to practice on, but you find out it's based on an easily accessible commercial model for which you can download the firmware for. Through some digging, you learn that all safes on the market in your country have to include a safety mechanism to prevent people from locking themselves in. You're able to find the firmware for the mechanism for further analysis.
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